Answer the following : (4 mark each)

Question 14 Marks

The following bar graph shows the expenditure (in thousands ) of Mr Jones' family during the last four months of the year.

Fill in the missing parts of the bar graph so that it becomes self explanatory.

Answer

Title: Ependiture of Mr Jones' family during last four months of a year.
Vertical axis: Expenditure (in thousands ₹): $10, 20, 30$
Horizontal axis: Months; October, November

View full question & answer→

Question 24 Marks

In a survey of $200$ adults on the meditation routine for overall health and well being, the results are shown in the form of a bar graph given alongside. Read the graph and answer the questions.

$(a)$ How many adults are surveyed?
$(b)$ How many adults meditate every day?
$(c)$ How many adults do not meditate every day?
$(d)$ Give an interesting title to the graph.
$(e)$ What scale has been taken to draw the graph?

Answer

$(a)\ 200\ (b)\ 75\ (c)\ 125$
$(d)$ Meditation routine of some adults
$(e)$ $1$ unit $= 10$ adults

View full question & answer→

Question 34 Marks

The table given below shows the number of books read by five friends during vacations.

Friends	$A$	$B$	$C$	$D$	$E$
Number of books read	$1$	$4$	$2$	$3$	$5$

Draw a bar graph and give a suitable title.

Answer

Self

View full question & answer→

Question 44 Marks

Five friends tossed their own coin $60$ times and recorded how many times head appeared. The data below shows their recording.

Name	Neha	Mina	Sheena	Beena	Reena
Number of heads appeared	$43$	$29$	$48$	$35$	$40$

Draw a $(a)$ horizontal $(b)$ vertical bar graph to represent the above data.

Answer

Self

View full question & answer→

Question 54 Marks

A survey was conducted by a "Car Manufacturing Company" to know the most popular colour among people.
The adjacent bar graph represents the various colours of cars owned by number of families in that survey.

Use the graph to answer:
$(a)$ Which is the most popular car colour?
$(b)$ How many families owned cars of other colours?
$(c)$ How many families were surveyed by the company?
$(d)$ How many more families owned white car than red car?
$(e)$ Suggest a better title for the bar graph.

Answer

$(a)$ Grey
$(b) 126$
$(c) 164$
$(d) 4$
$(e)$ Favourite colour of cars owned by some families

View full question & answer→

Question 64 Marks

Krishna drew a bar graph to show the number of minutes he practised playing flute last week. Read the graph carefully and answer the following questions.

$(a)$ On which day did he practise for maximum number of minutes?
$(b)$ Convert number of "practise minutes" for each day to hours. Write your answer in fractions.
$(c)$ For how many total hours did he practise from Monday to Friday?
$(d)$ On Thursday he took a break of $10$ minutes during his practice. For how many hours did he actually practise on that day?
$(e)$ On which day did he practise for least number of minutes?

Answer

$(a)$ Thursday
$(b)$ Monday: $1 h$, Tuesday: $1 \frac{1}{3} h$, Wednesday: $\frac{5}{6} h$, Thursday: $2 h$, Friday: $1 \frac{1}{3} h$
$(c)$ $6 \frac{1}{2} h$
$(d)$ $1 \frac{5}{6} h$
$(e)$ Wednesday
$(f)$ Number of minutes practiced by Krishna playing flute last week.

View full question & answer→

Question 74 Marks

The bar graph shows the average heart rate (heart beats per minute) of some animals according to a report. Observe it and answer the questions.

$(a)$ Write the heart beats (per minute) of the animals in the table.

Name of the animal	Heart beats per minute

$(b)$ Whose heart beats most number of times in a minute?
$(c)$ Name the animal whose heart beat is less than $10$ per minute.
$(d)$ The average heart beat of a human is $72$ per minute. Tell whose heart beat in the graph is closer to the human.
$(e)$ How many fewer heart beats do you note of an elephant than of a bear?

Answer

$(a)$

Name of the animal	Cat	Dog	Bear	Elephant	Blue Whale
Heart beats per minute	$130$	$90$	$50$	$30$	$6$

$(b)$ Cat
$(c)$ Blue Whale
$(d)$ Dog
$(e)$ $20$

View full question & answer→

MATH-MAGIC Answer the following : (4 mark each)

Test yourself on this topic